glutathione supplementation fatigue randomized trial Glutathione: Pharmacological aspects and implications for clinical use in non-alcoholic fatty liver disease Can Glutathione-SR Support Energy and

Anal Biochem 241:140142 Zalazar L, Saez Lancellotti TE, Clementi M, Lombardo C, Lamattina L, De Castro R, Forns MW, Cesari A (2012) SPINK3 modulates mouse sperm physiology through the reduction of nitric oxide level independently of its trypsin inhibitory activity

Some studies suggest a zinc deficiency is a cause of subclinical hypothyroidism, which may slow metabolism and contribute to unexplained weight gain and fatigue

GABA, the main inhibitory neurotransmitter, supports sleep, mood, blood pressure, pain perception, and precise nerve function.27 28 Studies show that mice without hepatic GSH synthesis die within a month, highlighting the importance of GSH in critical processes like digestion, DNA replication, respiration, and muscle and nerve function

Oxidative stress in sickle cell disease: an overview of erythrocyte redox metabolism and current antioxidant therapeutic strategies